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Professional Plus Quatro Multiparameter Instrument

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The YSI Professional Plus Quatro provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium, nitrate, chloride and temperature.

Professional Plus YSI Handheld Multiparameter Handheld and Laboratory Instrument with Quatro Probe

The Pro Plus instrument meets the demands of true field work. The instrument is rated to IP-67 standards even without the battery cover on. Other tough features include a 3-year warranty, Mil-spec connectors, rubber over-moulded case, and a 2-year cable warranty. In-house testing procedures also include 1-metre drop tests from all angles to ensure expected field-durability.

The instrument provides numerous benefits from the following features; 2,000 data-set memory, password protection, backlit display and keypad, graphic display with detailed Help functionality, re-calibration prompts, user defined fields, detailed GLP, auto stable, Hold All Readings function, Data Manager software for the desktop, USB connection, auto-buffer recognition, and flexible folders and site lists for logging data.

Connect any cable and probe option to the instrument and use the convenient cable management kit to keep everything simple and organised. Cable options range from 1-, 4-, 10-, 20-, and 30-metre choices (up to 100-metres on DO only cables). Use lab or field probes and switch between the two quickly. The Pro Plus makes an ideal lab BOD instrument with the proven self-stirring BOD probe. A convenient hand-strap can be used on either side of the instrument. A complete family of accessories also increases the versatility of the Pro Plus. Choose among accessories including carrying cases, flow cell, cable weight, belt clip, tripod, and c-clamp.

Data Manager
Data management can become a daunting task over time but with the Data Manager software this task is much simpler and efficient. Download data, configure instruments, and conduct real-time studies easily with Data Manager software. View data graphically or in tabular form and export data as needed to other programs. Data Manager software is a very powerful tool. So powerful in fact, that we give it to you at no charge when purchasing a Pro Plus. After all, it's all about the data!

When purchasing the Pro Plus you will receive the instrument, manual, batteries, communications saddle, USB cable, and Data Manager software.

You must order cables and probes separately.

ISE choice of pH, ORP, Ammonium NH4+, Chloride, or Nitrate

How to Order
Step 1 - order the instrument.
Step 2 - order cables in lengths including 1, 4, 10, 20, or 30-meters.
Step 3 - order the appropriate sensors.
Step 4 - order accessories

Ordering Information:

6050000 Professional Plus Full Featured Multiparameter Instrument

Probe and Cable Assemblies
10102030-1 Quatro - Dual ISE/Cond/DO/Temp 1 meter cable assy (DO and ISE sensors sold separately. Includes 5560 conductivity and temp)
10102030-4 Quatro - Dual ISE/Cond/DO/Temp 4 meter cable assy (DO and ISE sensors sold separately. Includes 5560 conductivity and temp)
10102030-10 Quatro - Dual ISE/Cond/DO/Temp 10 meter cable assy (DO and ISE sensors sold separately. Includes 5560 conductivity and temp)
10102030-20 Quatro - Dual ISE/Cond/DO/Temp 20 meter cable assy (DO and ISE sensors sold separately. Includes 5560 conductivity and temp)
10102030-30 Quatro - Dual ISE/Cond/DO/Temp 30 meter cable assy (DO and ISE sensors sold separately. Includes 5560 conductivity and temp)

ISE Probes
1001 pH Sensor
1002 ORP Sensor
1003 pH/ORP Sensor
1004 Ammonium ISE, NH4+
1005 Chloride ISE
1006 Nitrate ISE

Dissolved Oxygen Probes
2002 Galvanic DO Sensor
2003 Polarographic DO Sensor
ProBOD Stirring BOD Probe

3056 Flow Cell Mounting Spike
5604 Saddle Communications Kit
5515 DataManger Desktop Software
3075 Carrying Case, Soft Sided
3074 Carrying Case, Hard Sided
3069 Belt Clip
614 Ultra Clamp
4654 Tripod Clamp
5745 Maintenance Kit
038213 Brush, Tube Cleaner
601205 Grease, o-ring ( size is a 2cc tube)
3062 Cable Management Kit
5978 Weight, Probe/Cable, 4.9 oz
690 Weight, Probe/Cable, 24 oz, 3"
691 Weight, Probe/Cable, 51 oz, 6"
603070 Shoulder Strap